Petrol bombers have attacked police monitoring a dissident republican parade in Londonderry led by about 50 people in paramilitary-style uniform.
Several devices were thrown at police on the Derry Walls as the parade made its way from Creggan to Free Derry Corner in the Bogside on Monday.
Fireworks were also thrown at the police, who had established a bank of Land Rovers at Nailors Row overlooking the Bogside. Part of the city’s walls has now been closed to the public.
Many of those in the parade are wearing paramilitary-style clothing, in contravention of a Parades Commission ruling. The commission also ruled that flags relating to a proscribed organisation should not be displayed.
Participants had also been told they should comply with the directions of the police.
It is the first time in three years that the organisers had asked for permission to stage the event, which has been marred by violence in the past.
Last year, petrol bombers attacked journalists and set a number of vehicles on fire.
The Parades Commission said it noted that, historically, there had been serious criminal offending associated with this parade.
It is organised by the National Republican Commemoration Committee, which organises events on behalf of the anti-agreement republican party Saoradh.
In the past, the police have linked the party to dissident republican group the New IRA.